DOI QR코드

DOI QR Code

Computer modeling of tornado forces on buildings

  • Selvam, R. Panneer (Department of Civil Engineering, University of Arkansas) ;
  • Millett, Paul C. (Department of Civil Engineering, University of Arkansas)
  • 투고 : 2002.12.09
  • 심사 : 2003.04.25
  • 발행 : 2003.06.25

초록

A tornado changes its wind speed and direction rapidly; therefore, it is difficult to study the effects of a tornado on buildings in a wind tunnel. In this work, the status of the tornado-structure interaction is surveyed by numerical simulation. Various models of the tornado wind field found in literature are surveyed. Three-dimensional computer modeling work using the turbulence model based on large eddy simulation is presented. The effect of tornado on a cubic building is considered for this study. The Navier-Stokes (NS) equations are approximated by finite difference method, and solved by a semi-implicit procedure. The force coefficients are plotted in time to study the effect of the Rankine-Combined Vortex Model. Some flow visualizations are also reported to understand the flow behavior around the cube.

키워드

참고문헌

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피인용 문헌

  1. Rankine combined vortex interaction with a rectangular prism vol.29, pp.1, 2015, https://doi.org/10.1080/10618562.2015.1010524
  2. An IB-LBM investigation into the aerodynamic coefficients in relation to the rotation intensity of a tornado-like wind 2016, https://doi.org/10.1016/j.camwa.2016.07.016
  3. Physical simulation of a single-celled tornado-like vortex, Part B: Wind loading on a cubical model vol.96, pp.8-9, 2008, https://doi.org/10.1016/j.jweia.2008.02.027
  4. Characteristics of internal pressures and net local roof wind forces on a building exposed to a tornado-like vortex vol.112, 2013, https://doi.org/10.1016/j.jweia.2012.11.005
  5. The variation in the maximum loading of a circular cylinder impacted by a 2D vortex with time of impact vol.58, 2015, https://doi.org/10.1016/j.jfluidstructs.2015.07.005
  6. Effect of net structures on wall-free non-stationary air heat vortices vol.64, 2013, https://doi.org/10.1016/j.ijheatmasstransfer.2013.05.008
  7. A two-dimensional IB-LBM framework combined with re-tailored RCVM for assessing the rotation intensity of a tornadic wind over a building configuration vol.131, 2017, https://doi.org/10.1016/j.engstruct.2016.10.016
  8. Visualization of tornado-like vortex interacting with wide tornado-break wall vol.18, pp.2, 2015, https://doi.org/10.1007/s12650-014-0245-y
  9. The Second Verification of the Origins of Rotation in Tornadoes Experiment: VORTEX2 vol.93, pp.8, 2012, https://doi.org/10.1175/BAMS-D-11-00010.1
  10. Techniques for Predicting Cladding Design Wind Pressures vol.4, pp.9, 2007, https://doi.org/10.1520/JAI100862
  11. Transient loads on buildings in microburst and tornado winds vol.96, pp.10-11, 2008, https://doi.org/10.1016/j.jweia.2008.02.050
  12. Dependence of surface pressures on a cubic building in tornado like flow on building location and ground roughness vol.103, 2012, https://doi.org/10.1016/j.jweia.2012.02.011
  13. Large eddy simulation of the tornado-structure interaction to determine structural loadings vol.8, pp.1, 2005, https://doi.org/10.12989/was.2005.8.1.049
  14. CFD simulations of the flow field of a laboratory-simulated tornado for parameter sensitivity studies and comparison with field measurements vol.11, pp.2, 2008, https://doi.org/10.12989/was.2008.11.2.075
  15. Swirl ratio effects on tornado vortices in relation to the Fujita scale vol.11, pp.4, 2003, https://doi.org/10.12989/was.2008.11.4.291
  16. In Situ, Doppler Radar, and Video Observations of the Interior Structure of a Tornado and the Wind-Damage Relationship vol.94, pp.6, 2013, https://doi.org/10.1175/bams-d-12-00114.1
  17. A comparison of the forces on dome and prism for straight and tornadic wind using CFD model vol.26, pp.6, 2018, https://doi.org/10.12989/was.2018.26.6.369
  18. Vulnerability of Roof and Building Walls Under a Translating Tornado Like Vortex vol.5, pp.None, 2003, https://doi.org/10.3389/fbuil.2019.00053